I have posted a short article on this lens on my web page. I get asked about it often enough so that it was worth the trouble. I don't have 100% crops, because there's no need--the lens does what it does. If you need to adjust the plane of focus, you'll put up with the little problems this lens displays, but really the problems are tiny and the benefits huge. The images could be produced no other way.
I don't think it covers anything not already covered in this thread already, but it provides a short synopsis with examples for those who are new to camera movements. Here's one of the examples, made with a 5D and this lens.
Rick "not new to camera movements but new to this lens" Denney